Characterization investigations of W-Ni matrix composites reinforced with TiB2 and La2O3

Gökçe H., Balcı O., Agaogullar D., Demirkan O., Genç A. G., Öveçoğlu M. L., ...More

Acta Physica Polonica A, vol.123, no.2, pp.309-311, 2013 (SCI-Expanded) identifier

  • Publication Type: Article / Abstract
  • Volume: 123 Issue: 2
  • Publication Date: 2013
  • Doi Number: 10.12693/aphyspola.123.309
  • Journal Name: Acta Physica Polonica A
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.309-311
  • Istanbul Technical University Affiliated: Yes


W-1 wt% Ni (W1Ni) matrix composites reinforced with TiB2 and La2O3 particles were fabricated via mechanical alloying and activated sintering methods. Powder blends with compositions of W1Ni2 wt% TiB2x wt% La2O3 (x = 0:5, 1) were mechanically alloyed for 6 and 12 h. The results showed that increase in mechanical alloying duration to 12 h causes the decline of grain sizes of the W-Ni matrix to nanoscales. TiB2/La2O3 particles have a significant effect on the density/microhardness values and wear amounts of the sintered samples.